參數(shù)資料
型號(hào): LPC47M182
廠商: SMSC Corporation
元件分類: 晶體
英文描述: Microprocessor Crystal; Frequency:19.6608MHz; Frequency Tolerance:20ppm; Load Capacitance:18pF; Crystal Terminals:Radial Leaded; ESR:25ohm; Leaded Process Compatible:Yes; Mounting Type:Through Hole; No. of Pins:2 RoHS Compliant: Yes
中文描述: 先進(jìn)的I / O控制器與主板膠合邏輯
文件頁(yè)數(shù): 196/228頁(yè)
文件大小: 1269K
代理商: LPC47M182
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SMSC DS – LPC47M192
Page 196
Rev. 03/30/05
DATASHEET
HARDWARE MONITORING BLOCK
(T
A
= 0
o
C – 70
o
C, HV
CC
= +3.3 ± 10%)
PARAMETER
Temperature-to-Digital
Converter Characteristics
Internal Temperature Accuracy
External
Diode
Accuracy
Remote Source Current
High Level
Low Level
SYMBOL
MIN
-3
-2
-5
-3
TYP
±1
±1
90
5.5
MAX
+3
+2
+5
+3
130
7.5
UNITS
o
C
o
C
o
C
o
C
o
C
o
C
μA
μA
COMMENTS
Sensor
0
0
C <= T
A
<= 70
0
C
40
0
C <= T
A
<= 70
0
C
Resolution
-40
0
C <= T
S
<= 125
0
C
40
0
C <= T
S
<= 100
0
C
Resolution
I
ANG
Type Buffer – Analog
Inputs
(Dx+,
Dx-,
+3.3V_IN, +5V_IN, +12V_IN)
V
CC
Supply Current Active
+2.5V_IN,
Refer to “Appendix A – Thermal Diode Parameters” and “Appendix B – ADC
Voltage Conversion”.
See “Supply Current” subsection in “Hardware Monitoring Block Specifications”
section above.
Notes
:
Voltages are measured from the local ground potential, unless otherwise specified.
Typicals are at TA=25°C and represent most likely parametric norm.
The maximum allowable power dissipation at any temperature is PD = (TJmax - TA) / QJA.
Timing specifications are tested at the TTL logic levels, VIL=0.4V for a falling edge and VIH=2.4V for a rising
edge. TRI-STATE output voltage is forced to 1.4V.
Note 1:
All leakage currents are measured with all pins in high impedance.
Note 2:
The minimum value given for V
TR
applies when V
CC
is active. When V
CC
is 0V, the minimum V
TR
is 0V.
Note 3:
Max I
TRI
with V
CC
= 3.3V (nominal) is 5mA
Max I
TRI
with V
CC
= 0V (nomial) is 250uA
Note 4:
TUE (Total Unadjusted Error) includes Offset, Gain and Linearity errors of the ADC.
Note 5:
Total Monitoring Cycle Time includes all temperature conversions, all analog input voltage conversions.
Note 6:
The cycle time for option 1 is 542.336ms (typical) if 128 measurements are averaged for the remote diode
temperature reading and 8 measurements are averaged for all voltage and the internal temperature reading. It is
67.792ms (typical) for option 2 if 16 measurements are averaged for the remote diode temperature reading and a
single measurement is taken for all voltage and the internal temperature reading (i.e., no averaging).
Note 7:
V
OH
min and I
OH
does not apply to the RESET# and THERM# open-drain functions.
11.3.1 CAPACITANCE VALUES FOR PINS
The input and output capacitance applies to both the Super I/O Block and the Hardware Monitoring Block digital pins.
CAPACITANCE T
A
= 25
o
C; fc = 1MHz; V
CC
= 3.3V ±10%
PARAMETER
Clock Input Capacitance
LIMITS
TYP
SYMBOL
C
IN
C
IN
C
OUT
MIN
MAX
20
UNIT
pF
TEST CONDITION
All pins except pin
under test tied to AC
ground
Input Capacitance
10
pF
Output Capacitance
Note:
The input capacitance of a port is measured at the connector pins.
20
pF
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